Identify $X$ and $Y$ from figure.
$X$ -Male gametes, $Y$ -Synergid
$X$ -Plasma membrane, $Y$ -Egg cell
$X$ -Vegetative cell, $Y$ -central cell
$X$ -Synergid, $Y$ -Egg cell
Which are the three cells found in a pollen grain when it is shed at the three celled stage ?
Give information about compatible and incompatible pollen.
Diagram showing entry of pollen tube to the embryo sac. Identify $A$ to $G$ in the diagram
The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.
Name the part of gynoecium that determines the compatible nature of pollen grain.